Bottle-capping machine.



` J. J'.' GAYNOR @L P. c. LIEBER. BOULE CAPPING MACHINE.

APPLICATION FILED FEB. 25. l9|5 i. 'un sra'rne raannir orme-ni.-

JolIN J. GAYNOR'AND rE'rnRcaRL' LIEBER, or INDIANAPOLIS, INDIANA, assIeNoRs To PRoeREss MACHINE ooMPANY, or INDIANAPoLIs, INDIANA, a CORPORATION.

BOTTLE-CAPPING MACHINE.

Specification of LettersPatent. i

Patented'Feb. 1. 1 916.

Application filed February y25, 1915. -Serial No. 10,490.

To all whom t may concern.'

Be it known that we, JOHN J. GAYNOR and PETER CARL LIEBER, citizens of the hereby declare that the followingis a. full,

clear, and exact description thereof, reference belng'had to the accompanying drawings, in which-.like letters refer to like parts.

They object of this invention is to improve the construction ofv means in bottle capping understood from the accompanying draw ings and the following description andv machines for preventing the chipping of ofthe lip of the bottle by the throat of the crowning plate, vparticularly after the plunger mechanism has worn so asfto peri mit the mouth of the bottle to enter the throat .too far. /This is an improvement over the construction shown and described in our former application, Serial No.7 97 ,554,

machines.

and holding the spring in place around the plunger. This holds the spring from buckling or bending laterally and holds it truly" in place and causes a certain and regular actlon of the sprlng.

vAnother feature of the invention consists' .in improved means for limiting the upward movement of the plunger.

The full nature of the invention will be In the drawings, Figure 1 is an elevation of a-bottle and the upper part ofthe bottle support and a vcentral vertical y section through the crowning head. Fig.` 2 is a section on the line 2-2 of Fig. 1.

In the drawing 10 indicates a. bottle for4 which a support 11 is provided, theupper end of the bottle projecting into the rigid tapering throat 12 of the crowning head plate 13. As shown in Fig. 1, the bottle is in position to have a c rown 14 applied thereto, the bottle support 11 and crowning head being relatively movable as is usual in this' I y class of machines as will be readily understood by Ithose skilled in thefart. As will be-seen from the drawing the spring encompassing sleeve on the plunger is in enward, said spring surrounding the plunger filed October 27, 1913, for bottle capping gagement with and stopped by the plug 19 to positively limit the upward movement of the plunger at .the instant that the throat 12. ofthe capping plate 13V limits the upm ward movement of the cap and mouth' of the bottle 10. Within the casing 15 eXtending upwardfro'm said head plate' there is a centrally located plunger 16. Said plunger` has a shoulder near its lower end below which a contracted portion of the plunger projects through a. vertical opening concentric with the throat 12, but of ysmaller diameter than said throat, as sho-wn. Above the shoulder 17 a spiral spring 18 acts downand. engaging the plug 19 which Vscrews into the upper end of the casing 15. Therefore, said plug- 19 is vertically adjustable and by it the tension of the spring 18 may be. .regulated and the upward movement stopped. I

A sleeve or barrel 21 surrounds the spring 18 and lies between it and the casing 15 'and rests upon the lower shoulder 1-7 of the plunger, but stops at a pointsomewhat below the plug 19 near the upper end-of the plunger so as to permit ample compression of thespring. A lock nut 22V is screwed on the plug'19. The casing 15 and screw plug 19 are arranged so that the plunger willl have .only a slight movement 'and the up,-l

ward movement is yieldingly limited by cooperation of the spring and the plug 19. As the throat and plunger wear, the wear is taken up by screwing down theplug 19 accordingly.' f

The invention claimed is:

1. Abottle capping machine including 'a relatively'movalole capping plate and bottle support, said capping plate being provided with a tapering throat, a plunger for discharging the bottle and cap with its'lower end projecting through the capping plate into the throat thereof, adjustable means for --positively 'limiting the upward movement of the plunger at the instant that the throat= .of the capping plate limits the upward movement of the cap. and mouth of the bottle, said adjustable means including a sleeve inclosing a portion of the plunger, aspring encompassed by said sleeve to normally hold the lower .projecting end of said plunger within the said tapered throatl ofl said cappin plate.

42. A bott e capping machine including a 110 relatively movable capping plate and bottle support, said capping plate being provided"- with a tapering throat to receive the cap and mouth of a bottle to positively limit the inward movement thereof, a casing extendying upwardly from said plate,` a plunger within said casing, means-arranged in connection with the plunger forpositively limiting the,upward movement of the plunger at the instant that thethroat of the capping. plate limits the inward movement of the v"capa, and mouth of the bottle, and a spring acting on said plunger to resiliently hold the same in effective engagement with a bottle cap until the instant that the inward movement of the cap and the upward movement of the plunger is positively limited.

3. A 'bottle capping machine including a relatively movable capping plate and bottle support, said capping plate being provided with a rigid throat to receive the cap and movement of the plunger at the instant that the rigid throat ofthe capping plate limits the inward movement of the cap 'andmouth of a bottle and a spring acting on said plunger to resiliently hold the same in effective-engagement with a bottle cap until the instantl that the inward movement ofi the cap and the upward movement of the plunger is positively limited.

In Witness whereof, We have hereunto ailixed our signatures in the presence of the Witnesses herein named.

JOHN J. GAYNUR. PETERgCARL LIEBER. Witnesses J. H. l/VELLS, R; G. LooKwooD. 

